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Nickname for his model: Plum Pudding Model (or Raisin Bread Model) Description of his model: Thomsonâs model was known as the Plum Pudding Modelâ (or Raisin Bread Model.) As each atom was a sphere filled with a positively charged fluid, known as the âpuddingâ. Scattered in this fluid were negatively charged electrons, these were the âplumsâ in the pudding.
Rutherford's Planetary Model of the Atom By 1911 the components of the atom had been discovered. The atom consisted of subatomic particles called protons and electrons. However, it was not clear how these protons and electrons were arranged within the atom. J.J. Thomson suggested theplum pudding model. In this model the electrons and protons are uniformly mixed throughout the atom: Rutherford tested Thomson's hypothesis by devising his gold foil experiment.